When HTML to PDF Works (And When It Doesn't): A Developer's Guide to PDF Generation

You have a simple task: generate a PDF from your web app. The instinct is obvious: render HTML, print to PDF, done. After all, you already know HTML and CSS, and your content is probably already in some templated HTML format. This works fine until it doesn't. Page breaks split tables in half. Fonts render differently on your server versus your laptop. Headers and footers need manual positioning. And don't get started on multi-column layouts or page numbers in table of contents. Here's when HTML-to-PDF makes sense, when it falls apart, and what to use instead. The HTML-to-PDF Illusion HTML was designed for screens, not paper. When you convert HTML to PDF, you're forcing a screen layout engine to think in pages. This works reasonably well for: Simple reports with linear content flow Existing HTML content you can't easily restructure Quick prototypes where pixel-perfect output isn't critical The common tools in this space all share the same underlying approach: spin up a headless browser,